mirror of
https://github.com/warmbly/warmbly.git
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41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
package models
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import (
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"fmt"
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"strconv"
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"strings"
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)
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// ClockMinutes parses "HH:MM" into minutes since midnight, tolerating trailing
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// seconds and a fraction. Returns fallback for anything it cannot read.
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//
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// The tolerance is the point: start_time, end_time, warmup_start_time and
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// warmup_end_time are Postgres `time` columns that arrive as "09:00:00.000000",
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// while the app writes "09:00". A parser that accepted only the second form
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// silently disabled every campaign's sending window. One definition, so a
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// second caller cannot reintroduce that.
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func ClockMinutes(v string, fallback int) int {
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parts := strings.Split(strings.TrimSpace(v), ":")
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if len(parts) < 2 {
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return fallback
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}
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hour, err := strconv.Atoi(parts[0])
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if err != nil || hour < 0 || hour > 23 {
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return fallback
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}
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minute, err := strconv.Atoi(parts[1])
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if err != nil || minute < 0 || minute > 59 {
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return fallback
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}
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return hour*60 + minute
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}
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// ClockHHMM renders a clock value in the "HH:MM" form writes accept, or "" when it cannot be read.
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func ClockHHMM(v string) string {
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m := ClockMinutes(v, -1)
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if m < 0 {
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return ""
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}
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return fmt.Sprintf("%02d:%02d", m/60, m%60)
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}
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